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How To Change Your Cassette | Road And Triathlon Bike Maintenance

How To Change Your Cassette | Road And Triathlon Bike Maintenance


– To keep on top of your
drive train maintenance or even change your gear ratios, you’ll be wanting to remove your cassette. Now, it may seem complicated, but it’s actually pretty straight forward with the right tools. (electronic sting) The cassette is held on to
the free hub with a lock ring and to remove that, you’ll just need a specialist lock ring tool to undo that, and because the cassette can spin, allowing you to free-wheel, that is where the chain whip comes in. Then, finally, you need
to grip the lock ring tool using a specials spanner or
just an adjustable wrench. First things first, we need to remove the back wheel from the bike and to make things
easier, I normally suggest putting it in the big ring on the front and then the smallest cog on the back. That way, it’s far more straight forward when you replace the wheel after. Right, once the wheel is
out, we then need to remove the skewer so we can access the lock ring. Now, it’s worth noting that there are two different types of lock rings and therefore, two different types of lock ring removal tools. Firstly, we have one for
Shimano and Sram, here, which would work with this cassette and then, we have a different
one for Campagnolo, here, and whilst they do look very similar, they do have very different
depths and sizing of the teeth, so they won’t actually
work with each other. Now, slot the lock ring
tool into the cassette and I would suggest placing
the wheel on the ground with the hub facing away from you, so that you can apply pressure down when we get to the loosening part. Then, with the chain whip,
you want to wrap the chain around the cassette on
one of the largest cogs. However, not the largest cog because you want to allow
yourself a bit of space between your hands and the spokes to save you shaving any
skin off your knuckles. And then, finally, just make
sure that the chain is holding while on the cassette. Next, you wan to take your
spanner or adjustable wrench and attach it to the lock ring. I tend to try and position
these at something like a two and ten o’clock position. Right, now we’re ready
to loosen the lock ring. So, keep firm hold of the
chain whip in your left hand and we want to apply a bit more pressure down on the wrench in our right hand and it can require a bit of force because the cassette does need
to be held on pretty tight. Now that the lock ring is free, you can remove the wrench
and the chain whip, but leaving the lock ring tool in place and then, just unscrew the rest by hand. Now that you’ve removed the lock ring and the lock ring tool, you should be able to slide the cassette off the free hub body pretty easily. Now, if you do have trouble
pulling the cassette off, it could be because you have
an aluminium free hub body, which forms some dents and notches, causing the cassette to get stuck. So, if this is the case, just remove as many parts
of the cassette as possible, then apply a bit of pressure
on those remaining parts to prize it off. As you can see, cassettes
are often made up of a number of parts. Some come as one complete block or others, like this one, come as a lot of individual parts with
spacers between them. Now, if you’re replacing
your cassette with a new one, you will need to be wary of compatibility. How wide you free hub
body is will determine how many gears you can have and if you’ve got an 11 speed cassette, you will need an 11 speed free hub body. However, an 11 speed free hub body can actually take a ten
speed cassette or smaller with the correct spacer behind it. In the same way that
Campagnolo requires a different lock ring tool, it also requires
a different free hub body. So, Shimano and Sram cassettes
require Shimano and Sram compatible free hub body,
whereas a Campagnolo requires a different free hub body. So, the good new is that
to replace the cassette is actually pretty hard to do it wrong and that’s because the free hub body has a pattern of splines
that make it impossible to put the cassette on
in the wrong position or the wrong way around. Now, for tightening the lock ring back on. We’re actually gonna need
the chain whip for this because you’re tightening in
the direction that you pedal, so you only need the lock ring tool and your spanner or wrench. If you can, simply screw
the lock ring on by hand just to hold the cassette in place and then, insert your lock ring tool to then screw on, again, by hand. Then, to finish it, attach the wrench and apply pressure to secure it firmly. So, there we go. Just reinsert the skewer,
place it back on your bike, and you’re good to go, and if you like this
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